Mining and cleaning domestic coal in Ohio
By: by H.E. Nold ... and A.H. Dierker ...
Contributors: Dierker, Arthur Harvey, 1896- joint author.
Series: The Engineering Experiment Station. Circular; no. 19
Publisher: The Ohio State University
Published: 1929
Place of publication: Columbus
Language: eng
Subjects: Coal mines and mining -- Ohio.
Other titles: Mining and cleaning domestic coal in Ohio.
Notes: At head of title: The Ohio State University studies. Engineering series. Nov., 1929.